The Organisation for Economic Co-Operation and Development (OECD) has surveyed water prices in twenty Western countries. Their findings indicate that Denmark may have the most expensive tap water in the world.World’s Most
Water in Denmark costs $6.70 per cubic meter. That’s about 2.5 cents per gallon–quite a bit more than in the US, where a gallon of water costs between .07 and .2 cents. Part of the reason for this price is that it includes the price to clean and dispose of the water. This practice has led Danish consumers to use water more conservatively, but it has also strained their agricultural industry.
The least expensive water came from Mexico, where citizens pay about 50 cents per cubic meter.